<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
    <link rel="stylesheet" href="./css/index.css" />
  </head>
  <body>
    <div class="container">
      <ul class="top">
        <!-- 基础模板 -->
        <!-- <li>
          <a href="javascript:;">首页</a>
          <ul class="sub">
            <li>
              <a href="javascript:;">
                <span>砂锅厨具</span>
                <img src="https://yanxuan.nosdn.127.net/3102b963e7a3c74b9d2ae90e4380da65.png?quality=95&imageView" alt="">
              </a>
            </li>
          </ul>
        </li> -->
      </ul>
    </div>
    <script src="./axios.js"></script>
    <script>
      window.onload=()=>{
        axios({
          url: 'http://ajax-api.itheima.net/api/category/top',
        }).then(res=>{
          const arr = res.data.data.map(el=>{
            return axios({
              url: 'http://ajax-api.itheima.net/api/category/sub',
              params: {
                id: el.id
              }
            })
          })
          Promise.all(arr).then(res=>{
            // console.log(res)
            const str = res
            .map(v=>{
              return `<li>
          <a href="javascript:;">${v.data.data.name}</a>
          <ul class="sub">
            ${v.data.data.children.map(el=>{
              return `<li>
              <a href="javascript:;">
                <span>${el.name}</span>
                <img src="${el.picture}" alt="">
              </a>
            </li>`
            }).join('')}
          </ul>
        </li>`
            }).join('')
            document.querySelector('.top').innerHTML = str
          })
        })
      }
    </script>
  </body>
</html>
